Organic Electrochemical Transistor with MoS[sub.2] Nanosheets Modified Gate Electrode for Sensitive Glucose Sensing

An organic electrochemical transistor (OECT) with MoS[sub.2] nanosheets modified on the gate electrode was proposed for glucose sensing. MoS[sub.2] nanosheets, which had excellent electrocatalytic performance, a large specific surface area, and more active sites, were prepared by liquid phase ultras...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-08, Vol.23 (17)
Main Authors: Hu, Jin, Dai, Jiajia, Huang, Caiping, Zeng, Xierong, Wei, Weiwei, Wang, Zhezhe, Lin, Peng
Format: Article
Language:English
Subjects:
Dextrose
Glucose
Health aspects
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Summary:An organic electrochemical transistor (OECT) with MoS[sub.2] nanosheets modified on the gate electrode was proposed for glucose sensing. MoS[sub.2] nanosheets, which had excellent electrocatalytic performance, a large specific surface area, and more active sites, were prepared by liquid phase ultrasonic exfoliation to modify the gate electrode of OECT, resulting in a large improvement in the sensitivity of the glucose sensor. The detection limit of the device modified with MoS[sub.2] nanosheets is down to 100 nM, which is 1~2 orders of magnitude better than that of the device without nanomaterial modification. This result manifests not only a sensitive and selective method for the detection of glucose based on OECT but also an extended application of MoS[sub.2] nanosheets for other biomolecule sensing with high sensitivity.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23177449